Plants need oxygen, we all know that. The correct oxygen content in the water is important for the overall quality, water and nutrient absorption of the roots. It also contributes to healthier roots and therefore the plant can better defend itself against pathogenic fungi. For example, with good oxygen levels, calcium absorption improves.

The problem in greenhouse horticulture is that enough oxygen is measured in the basin, but the level at the dripper is too low. On hot days the content is already too low even in the basin.